EP 0791724 A4 19990804 - TUNNEL DRILLING MACHINE
Title (en)
TUNNEL DRILLING MACHINE
Title (de)
TUNNELBOHRMASCHINE
Title (fr)
MACHINE A PERCER DES TUNNELS
Publication
Application
Priority
- JP 9502314 W 19951114
- JP 28028294 A 19941115
Abstract (en)
[origin: WO9615353A1] A cutter head is supported on a front portion of a main frame to be inclined relative to a vertical plane at a predetermined angle. Also, provided on the main frame are a roof support disposed in a position corresponding to a drilling reaction force in a circumferential direction of a tunnel, which reaction force is produced by rotation of the cutter head, and a biasing device for biasing the roof support toward the cutter head against the drilling reaction force.
IPC 1-7
IPC 8 full level
E21D 9/08 (2006.01); E21D 9/087 (2006.01); E21D 9/10 (2006.01); E21D 9/11 (2006.01); E21D 9/06 (2006.01)
CPC (source: EP KR US)
E21D 9/06 (2013.01 - KR); E21D 9/08 (2013.01 - EP US); E21D 9/1093 (2013.01 - EP US)
Citation (search report)
- No further relevant documents disclosed
- See references of WO 9615353A1
Designated contracting state (EPC)
CH DE LI SE
DOCDB simple family (publication)
WO 9615353 A1 19960523; EP 0791724 A1 19970827; EP 0791724 A4 19990804; JP 3449803 B2 20030922; JP H08135377 A 19960528; KR 0175169 B1 19990218; KR 960018143 A 19960617; TW 338780 B 19980821; US 5915790 A 19990629
DOCDB simple family (application)
JP 9502314 W 19951114; EP 95936783 A 19951114; JP 28028294 A 19941115; KR 19950041564 A 19951115; TW 84112002 A 19951114; US 83637297 A 19970512